Quantum Health, Inc. Data Breach Lawsuit Investigation
Received a July 2026 breach notice from Quantum Health?
Dapeer Law, P.A. is investigating a potential class action against Quantum Health, Inc., an Ohio-based healthcare navigation company that manages benefits and care coordination for employer health plan members, on behalf of individuals whose personal, health insurance, and medical information may have been exposed in the May 2026 network intrusion the company has now disclosed.
Who may qualify
You may be eligible to participate in a class action if any of the following applies:
- You received a data breach notification letter from Quantum Health dated July 2026.
- Your letter offered enrollment in complimentary Kroll identity-monitoring services, including credit monitoring, fraud consultation, and identity-theft restoration.
- You had personal, health insurance, or medical information held by Quantum Health in its capacity as a healthcare navigation and benefits administration vendor for your health plan.
- No proof of harm required to consult with counsel. You do not need to have already suffered identity theft to explore your legal options.
- Excluded: individuals who did not receive a breach notice and whose information was not involved in the incident.
Not sure if you qualify?
Send us your notice, we'll confirm your eligibility at no cost.
What happened
According to a notice filed with the Massachusetts Attorney General on July 30, 2026, Quantum Health, Inc. experienced a service-interrupting security incident that began with a vishing attack, a phone-based social-engineering call, on May 29, 2026. The company reports that after an employee responded to the call, an unauthorized party gained access to its network and acquired files before the activity was detected. Quantum Health says it identified an outage on June 1, 2026 and moved to secure and isolate the affected systems.
Quantum Health reports that it engaged third-party digital forensics specialists, restored system availability, and completed its review on July 8, 2026, at which point it confirmed that at least one individual's protected information was among the files taken. The company states that the affected files contained names together with one or more of the following: Social Security numbers, health insurance information such as policy numbers and claims or benefits information, health information such as medical and treatment details, diagnoses, prescriptions, provider names, and dates of service, and other personal information such as date of birth, email address, mailing address, phone number, or demographic information. Notices were mailed beginning July 30, 2026, and the company is offering complimentary identity-monitoring services through Kroll. Not every category applied to every person, so individual letters should be checked for specifics.
Because the reported data set combines Social Security numbers with health insurance and treatment information, affected individuals may face an elevated risk of financial identity theft, medical identity theft, and fraudulent insurance claims filed in their names. Quantum Health says it has enhanced its existing security protocols and implemented additional safeguards. The roughly two-month gap between the June 2026 detection and the July 2026 notices, the adequacy of the training and verification controls that allowed a phone-based social-engineering call to lead to network access, and the full scope of individuals affected are among the issues our firm is evaluating.
What to do if you received a letter
Keep your notice letter
Do not discard it. Your letter contains the personalized activation code for the Kroll identity-monitoring services and is important evidence if you decide to participate in a lawsuit.
Enroll in the free Kroll identity monitoring
Activate the Kroll credit monitoring, fraud consultation, and identity-theft restoration services offered in your letter using your personalized code before the stated deadline. Accepting this benefit does not waive your right to pursue legal action.
Place a fraud alert or credit freeze
Contact Equifax, Experian, and TransUnion to place a fraud alert or freeze on your file. Request a free weekly credit report from AnnualCreditReport.com, and use the FTC's IdentityTheft.gov recovery guide. Because health insurance and treatment information was involved, also review any Explanation of Benefits statements you receive and report services or providers you do not recognize to your insurer.
Speak with a data breach attorney
Consultations with Dapeer Law are free and confidential. We'll review your notice, explain your options, and advise whether you may be eligible to join a class action.
Submit your notice for a free review
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Breach timeline
Compensation you may be entitled to
Out-of-pocket expenses
Credit freezes, identity restoration services, and other costs incurred responding to the breach.
Time spent monitoring
Hours spent reviewing accounts, disputing fraudulent charges, and dealing with identity theft issues.
Identity theft & fraud losses
Unreimbursed funds stolen from accounts, unauthorized credit lines, medical-claim fraud, or tax refund fraud tied to the breach.
Statutory damages
Certain state data breach and consumer protection statutes provide for fixed damages regardless of actual loss.
Injunctive relief
Court orders requiring Quantum Health to implement stronger data security practices going forward, including improved employee verification and social-engineering defenses.
Compensation categories depend on applicable state law, the types of data exposed, and documented losses. No recovery is guaranteed.
Common questions
I received a data breach letter from Quantum Health. What should I do? +
Keep your Quantum Health notice letter, activate the complimentary Kroll identity-monitoring services using the personalized code in your letter, and review your credit reports, bank statements, and Explanation of Benefits statements for unfamiliar activity. Because Social Security numbers were reported among the affected data, consider placing a fraud alert or credit freeze with the major bureaus, and document any out-of-pocket costs or time spent addressing identity theft. You can also contact a data breach attorney for a free review of your options.
Am I eligible to join a class action against Quantum Health? +
If you received a notice letter from Quantum Health, you may qualify. Eligibility depends on factors such as your state of residence, the categories of information exposed in your individual letter, any documented losses, and the time you spent resolving problems tied to the breach. A lawyer can confirm whether you qualify.
How much money could I receive from a class action lawsuit? +
Data breach class action recoveries vary significantly. Settlements typically range from a few hundred dollars for basic out-of-pocket losses to several thousand dollars for documented identity theft, with class size, damages, and negotiation all affecting the final amount. No payout is guaranteed, and this investigation has not yet resulted in a settlement.
What personal information was exposed in the breach? +
Quantum Health reports that the affected files contained names along with one or more of the following: Social Security numbers, health insurance information such as policy numbers and claims or benefits information, health information such as medical and treatment details, diagnoses, prescriptions, provider names, and dates of service, and other personal information such as date of birth, email address, mailing address, phone number, or demographic information. Not every category applied to every person, so check your individual letter for the specific details that applied to you.
Did Quantum Health offer free credit monitoring? +
Yes. Quantum Health is offering complimentary identity-monitoring services through Kroll, including credit monitoring, fraud consultation, and identity-theft restoration. The term of the service and the activation deadline are stated in your individual letter, and enrolling does not waive your right to pursue legal action.
How many people were affected by the Quantum Health breach? +
The filing with the Massachusetts Attorney General reports one affected consumer in the Commonwealth. Quantum Health has not publicly disclosed a nationwide total, and this page will be updated if additional numbers are released.
Is there a deadline to take legal action? +
Yes. Statutes of limitations for data breach claims vary by state and legal theory, typically ranging from one to six years. Waiting can permanently bar your claim. Contact us as soon as possible for a free evaluation.
How do I get a copy of the official breach notice? +
The notice was filed with the Massachusetts Attorney General, and a copy of the breach notice can be downloaded from the Mass.gov website using the link in the sources section of this page. Dapeer Law can also help you obtain and review a copy during a free consultation.
Sources & references
- Official breach notice filing · Massachusetts Attorney General breach notice (PDF)
- Company · Quantum Health, Inc. (quantum-health.com)
- Credit bureau freezes · Equifax · Experian · TransUnion
- Free weekly credit reports · AnnualCreditReport.com
- Identity theft recovery guide · FTC IdentityTheft.gov
Don't let the deadline decide for you. Submit your claim today.
You only have a limited window to act. Our team will review your notice, explain your options, and tell you whether you may be eligible to recover compensation, at no cost to you.
